QuadroFXO Manual II: Administrator's Guide
Administrator's Menus
QuadroFXO (SW Version 3.0.x)
42
The
STUN Parameters
page enables automatic NAT
configuration through the STUN server and is used to configure
the STUN (Simple Traversal of UDP over NAT) client on the
Quadro. The page requires the following data to be inserted:
The
STUN Server
text field requires the STUN server’s
hostname or IP address. The
STUN
Port
text field requires the
STUN server port number.
The
Polling Interval
drop down list contains the possible time
intervals between referrals to the STUN server.
The
Keep-alive interval
text field gives the possibility to select
the time interval (in seconds) for keeping NAT mapping alive.
Fig. II-62: STUN Parameters page
The
NAT Exclusion Table
page includes a table where all possible IP ranges are listed that allows to exclude some network addresses from being
NATed. For example, if a Quadro user needs to make SIP calls within the local network as well as outside of that network, all local IP addresses are
required to be excluded from NAT traversal settings by being listed in this table. Otherwise, a malfunction may occur in SIP operations.
The
NAT Exclusion Table
page offers the following input
options:
Each record in the table has its checkbox assigned to its row.
This checkbox is used to delete or to edit the corresponding
record. As only one record may be edited at a time, an error
message appears, if none or more than one is selected.
Each column heading in the table is a link. By clicking on the
column heading, the table will be sorted by the selected
column. Upon sorting (ascending or descending), arrows will
be displayed close to the column heading.
The
Add Entry
page includes the following text fields:
Add
opens the
Add Entry
page where a new IP range can
be added.
Edit
opens the
Edit Entry
page where the IP range can be
modified. The page includes the same components as the
Add Entry
page.
The
NAT Exclusion Table
lists all possible IP ranges that
are not included into the NAT process, but may be accessed
directly. IP addresses that are not listed in the
NAT
Exclusion Table
are accessed over NAT.
Fig. II-63: NAT Exclusion Table page
IP address
requires the IP address that is placed behind
NAT within the local network.
Subnet Mask
requires the subnet mask corresponding to the
specified IP address.
Fig. II-64: NAT Exclusion Table - Add Entry page
